Sega Master Force was a short-lived UK-based magazine split from Sega Force. It came as a result of a decision in 1993 to split the Sega Force magazine into two separate magazines; Sega Master Force (which focused on the Sega Master System) and Sega Force Mega (which focused on the Sega Mega Drive).

Faced with heavy competition and the downturn of Sega Master System sales, the magazine did not last long (though Sega Force Mega only lasted another month). Both magazines had a shared "G-Force" section which covered Sega Game Gear games.